KOHN: Oh is he. BERGE: So it'll be little bit more difficult for us. I called him up, and he was willing but he wasn't willing to come down. KOHN: No, of course not. I, the thought passes through my mindthat this has not been a verysatisfactory interview. Sort of haphazard, jumping around. I oughtto be able to give you a straightforward coherent story which shows how started at something and this developed into some great thing which has flowered and benefited mankind. And perhaps you'll get that from some of the other people you work with. My career has been more varied than that of most people. You know I have an MD and a Ph.D.. I'ma licensed, so to speak, radiation therapist, I've passed the boards. I wrote my Ph.D. thesis on photosynthesis. I've worked on a greater variety of things: plants, animals, man, so forth than most. So it's harder to make it coherent. It would have been mucheasier for you with somebody whospecialized say in the central nervous system and stayed with that all of the time. BERGE: But maybe you can give me an idea of someof the different work and developments pertaining to plants, animals and men. KOHN: Well, what would you like to know? I'll tell you, one of the problems, I feel that we really don't know very much more now,basically, than wedid formerly. It's a funny thing to say. Oh, we know much more aboutdetails, and the details can be interesting. I'm speaking now of radiation biology and radiation epidemiology. But the same problems face us for radiation epidemiology as then. There has been a constant effort to push 20